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光学仪器特种细牙螺纹
Special kind of fine screw for optical instruments
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光学仪器防霉、防雾、防锈 试验方法
The test methods for the prevention of mould, fog, corrosion of optical instruments
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计量光栅 玻璃光栅盘 技术要求
Metrology grating technology -- Technical requiremnts for grating disk of glass
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计量光栅 玻璃光栅尺 技术要求
Metrology grating technology -- Technical requiremnts for grating bar of galss
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计量光栅 数显表 试验方法
Metrology grating technology -- Test method of digital display meter
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计量光栅 术语
Metrology grating technology -- Vocabulary
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测量显微镜
Measuring microscope
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平板仪
Plane table equipments
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衍射光栅 技术条件
Specification for diffraction grating
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